Since pen and paper have become relatively obsolete, why are you still writing down your shopping lists on stickies? Knotler.com is a clever shopping list service that connects to computers, PDA’s, and cell phones allowing for list collaboration.
The idea is that one person starts a list and can then share it (using Internet capable devices) with family members or similar who can then edit the list and add to it. Once the list is finalized, the shopper can view the list on the screen of their cell phone while in the store. There is no registration and users just need to log in with the list name and an optional password. The password is optional because the team at Knotler feels that shopping lists are usually not a private matter but there should be an option in cases of birthday or Christmas lists. Knotler.com is not only perfect for grocery store lists, but also for ordering take-out dinners and back-to-school shopping.
Knotler.com In Their Own Words
“Ok, you can stop writing down your shopping lists on PostIts while listening to your wife’s instructions over the phone.”
Why Knotler.com It Might Be A Killer
This idea will definitely stick and will be a fun way for families to interact and collaborate. Paper lists are a thing of the past and always got mixed up in the receipts anyway. Knotler.com offers users to make an unlimited number of lists as a free service and also has a helpful blog that offers trouble shooting guidance that is explained in a clear (not overly technical) manner.
Some Questions About Knotler.com
It is possible to make a list that has different categories or to-do sections, possibly multiple headings for goods needing to be bought from different stores? 
